<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <style>
    body {
      margin: 0;
    }

  </style>
  <body>
    <!-- style="width: 600px; height: 450px;" -->
    <!-- <iframe
      src="https://www.bilibili.com/video/BV14J4114768?spm_id_from=333.788.player.switch&vd_source=e9bae2fbd986893542ae9d571e95038a&p=445"
    >
    </iframe> -->
    <iframe 
      src="https://www.bilibili.com"
      width="100%"
      height="100px"
      frameborder="0"
      ></iframe>
  </body>
</html>
